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EXTECH GRT300: 4-Wire Earth Ground Resistance Tester Kit


Extech GRT300: 4-Wire Earth Ground Resistance Tester Kit

Measure earth ground in 4 ranges from 2 to 2000 Ohm


  • 4-wire, 3-wire, and 2-wire testing
  • Large dual line LCD
  • Automatic I (current) and P (potential) spike check
  • Test Hold function for easy operation
  • Autoranging, Automatic Zero adjustment, Data Hold and Auto Power off
  • AC Earth Voltage
  • Overrange and low battery indication
  • Complete with test leads with alligator clips, 4 auxiliary earth bars, hard carrying case, and eight 1.5V AA batteries
Downloads:DatasheetEXTECH GRT300 Datasheet
ManualEXTECH GRT300 Manual

Call to confirm inventory quantities and get a quote:
865.777.0099 - Mon - Fri 8AM 5PM EST

Add to Cart:

  • Model: GRT300
  • Shipping Weight: 4lbs